Staples says security breach may have affected 1.16 million cards

(Reuters) - Office-supply retailer Staples Inc said about 1.16 million payment cards might have been affected by the data breach announced in October. An investigation by external data security experts showed that criminals deployed malware to some point-of-sales systems at 115 U.S. stores, Staples said. The company said it has since eradicated the malware. Staples, which has more than 1,400 stores in the country, said the malware might have allowed access to some transaction data, including car